<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
 <div class="content">
     <div id="lick-button-root"></div>
     <script src="https://unpkg.com/react@18/umd/react.development.js" crossorigin></script>
<!--     <script 02-src-TodoList 案例="https://unpkg.com/react-dom@18/umd/react.development.js" crossorigin></script>-->
 </div>
 <script>
     console.log("react", React, ReactDom);
     const reactElement = React.createElement("div", {}, "hello react");
     console.log("reactElement", reactElement);
 </script>
</body>
</html>